Cum-what?

“Wait, what’s that?” you ask.

“It’s when someone, you in this case, gets pumped full of so much cum you blow up like a balloon instead of it coming out the other end. The chems in my cum will make sure you don’t explode,” Amy explains.

You stop riding her. “I don’t think I like that. I’m getting off,” you state. You try to pull off her cock and stand, but her cock won’t come out of you.

Amy giggles. “Whoops, looks like all that attention has my cock swelling!”

You turn around and try to push yourself off Amy. Her cockhead must have swollen too fat, and now you can feel her shaft is starting to swell too, stretching your ass wider and wider.

“That’s a better position, great idea! Your belly will be able to fill in easier if it isn’t crammed between us,” Amy praises you.